MTU 12V4000L32FB Operating Instructions Manual page 80

1.4520.256 – Open Primary, Channel 12
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.257 – Open Primary, Channel 13
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.258 – Open Primary, Channel 14
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.259 – Open Primary, Channel 15
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.260 – Open Primary, Channel 16
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.262 – Open Primary, Channel 17
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
1.4520.263 – Open Primary, Channel 18
Yellow alarm. Initiated by IC922.
Cause
Ignition energy was not
discharged.
80 | Troubleshooting | MS150115/00E 2013-10
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coils.
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coils.
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coils.
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coils.
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coils.
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coils.
Corrective action
1. Check cabling to ignition coil.
2. Check ignition coils.